Test Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the numbers in the diagnostic procedure.
- 3
A large leak in the intake system will set a MAF sensor DTC. All intake ducts should be checked after the MAF sensor for proper installation.